Massachusetts / Winthrop
Is solar worth it in Winthrop?
NSTAR Electric Company averages 16.3¢/kWh. With 4.2 peak sun hours a day, a typical 8.4 kW system makes ~10,307 kWh a year and saves about $1,677 in year one.
No federal tax credit is included. The 30% homeowner credit (IRS §25D) ended for systems installed after Dec 31, 2025. What changed in 2026 →
How Winthrop compares
That is about the same as the Massachusetts average of 11.7 years, mainly because Winthrop's rate is below the state average of 16.3¢/kWh. Your own payback depends on your bill: enter your ZIP and monthly bill above for your number.
| Nearby city | Rate | Payback | 25-yr net |
|---|---|---|---|
| Revere | 16.3¢ | 11.7 yrs | $38,038 |
| Chelsea | 16.3¢ | 11.7 yrs | $38,038 |
| Boston | 16.3¢ | 11.7 yrs | $38,038 |
| Everett | 16.3¢ | 11.7 yrs | $38,038 |
| Malden | 16.3¢ | 11.7 yrs | $38,151 |
| Somerville | 16.3¢ | 11.7 yrs | $38,038 |
| Lynn | 16.3¢ | 11.7 yrs | $38,151 |
| Melrose | 16.3¢ | 11.7 yrs | $38,038 |
Questions
How long does solar take to pay off in Winthrop, MA?
About 11.7 years for a typical 8.4 kW system at 16.3 cents/kWh, assuming $2.75/W installed, full net metering and 3% yearly rate increases, with no federal tax credit.
Is solar worth it in Winthrop?
Often, if you plan to stay long-term. Our estimate is $1,677 saved in year one and $38,038 net over 25 years after paying for the system.
How much does a solar system cost in Winthrop?
A 8.4 kW system sized for an average home (863 kWh/month) is about $23,100 before any local rebates, at $2.75 per watt. Real quotes vary by roof and installer.
Is there a federal solar tax credit in 2026?
Not for homeowners who buy their system. The 30% Residential Clean Energy Credit (IRS section 25D) does not apply to installations completed after December 31, 2025. State rebates, SRECs and utility incentives may still apply.
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